Support Center

Frequently Asked Questions

What is a winmail.dat file?

A winmail.dat file is a proprietary email attachment format used by Microsoft Outlook. It contains Rich Text Format (RTF) information and may include other attachments that were part of the original email message.

How do I open a winmail.dat file?

Simply download our Winmail File Viewer app from the App Store. Once installed, you can open any winmail.dat file directly from your email app or file manager. The app will instantly display all contents and attachments.

Is my data secure?

Yes, absolutely. All file processing happens locally on your device. We don't upload, store, or have access to any of your files or personal data. Your privacy and security are our top priorities.

Can I save extracted attachments?

Yes! After opening a winmail.dat file, you can save any or all extracted attachments to your device. You can also share them with other apps or save them to your preferred cloud storage service.

How do I cancel my subscription?

You can manage your subscription through your Apple ID settings. Go to Settings → [Your Name] → Subscriptions, find Winmail File Viewer, and select "Cancel Subscription". You'll continue to have access until the end of your current billing period.

How to Use

  1. 1.Download and install Winmail File Viewer from the App Store
  2. 2.When you receive a winmail.dat file, tap on it in your email app
  3. 3.Choose "Open with Winmail File Viewer" from the share menu
  4. 4.View all extracted content and attachments instantly
  5. 5.Save or share any attachments as needed

Contact Us

Still need help? We're here for you! Reach out to our support team:

Email: support@winmailviewer.app

Response Time: Within 24 hours

When contacting support, please include your device model, iOS version, and a description of the issue you're experiencing.